Ethiopia’s brutal Marxist dictator, known as the African Pol Pot, became the first fallen leader to be found guilty yesterday of genocide in his own country after a 12-year trial.Mengistu Haile Mariam, the former President, who fled to Zimbabwe in 1991, was accused along with top members of his military Government of killing thousands during his 17-year rule. The period was marked by vicious crackdowns on opponents, disastrous wars with neighbouring countries and rebel groups and devastating famines in which starvation was used to force peasants into submission. “Members of the Derg [Government] who are present in court today and...